IR 05000289/1975010
| ML19256D609 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 05/22/1975 |
| From: | Napuda G NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | |
| Shared Package | |
| ML19256D608 | List: |
| References | |
| 50-289-75-10, NUDOCS 7910190570 | |
| Download: ML19256D609 (9) | |
Text
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IEtI Form 12
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75) (Rev)
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U. S. NUCLEAR REGULATORY COMMISSION
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-- = 4 0FFICE OF INSPECTION AND ENFORC,EIENT
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REGION I
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IE Inspection Report No:
50-289/75-10 Docket No:
50-289
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.icensee:
Metropolitan Edison Company License No:
DPR-50 P. O. Box 542 Priodtp Reading, Pennsylvania 19603 C
Ca tegory:
Safeguards
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Hiddletown, Pennsylvania, 3 Mile Island 1 oca tion:
rype of Licensee:
Special, Announced
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Ejpe.of Inspection:
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$f Inspection:
May 8, 9 & 12, 1975
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A ril 15, 1975 P
Ja 3 of Previous Inspection:
II-r o
[.4J o-Z2-75'
leporting Inspector:
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G. Napuda, Rgactort inspector DATE
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(ccompanying Inspectors:
NONE DATE DATE DATE
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NONE
)ther Accompanying Personnel:
DATE
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seviewed By:
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5-22 '7f
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R. Haynes, Senior 'Reac tdr Inspdct'or DATE .I 7910100 5 / O .
. . '~ . s t .- "" SUMMARY OF FINDINCE.
Enforcement Action t-Items of Noncompliance None B.
Deviationc None - . Licensee Action on Previously Identified Enforcement Items Not Applicable , Design Changes None Identified U usual Occurrences . . n ' ! None Identified . - , Other Significant Findings A.
Current Findings . 1.
Acceptable Areas a.
Correlation Between the Facility's Reouirements and As-Built Status for Fire Stops on Electrical Saf ety-Re'ated Cables and Penetration Seals ' A visual examination of the fire barrier and compartment seal installations and fire retardant coating applications was performed by the inspector.
There is correlation between the as-built status and the documented require-ments.
(Details, Paragraph 3) , .. O 1452 123 ~ N' , .m Se
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Invokcment of Facility Reauirements for Fire Stops on ~ Electrical Safetv-Related Cables and Penetration Seals in thintenance and Modification Procedures The procedure that controls maintenance, modification, and repairs and a recently approved work instruction written ~ specifically for installation and repair of fire barriers were reviewed.
They appear to adequately control activi-ties in the subject areas. (Details, Paragraph 4) B.
Status of Previously Reported Unresolvad Items Not Inspected Hbnagement Interview At the conclusion of the inspection, the inspector held-a meeting at the ' site with the following personnel to discuss the inspection findings: Metropolitan Edison Comoany J. Colitz, Unit Number One Superintendent , C. E. Hartman, Electrical Engineer ' ' . l J. Herbein, Station Superintendent ' - G. May, Senior Staff Engineer W. E. Potts, Quality Control Supervisor Gilbert Acsociates .
P. Shipper, Project Electrical Engineer The following items were discussed and the inspector's findings were = acknowledged by the licensee.
A.
Purpose of Inspection The inspector stated that the purpose of this special, announced inspection was to examine the documented facility requirements for fire stops on safety-related cables and penetration seals, to visually inspect these items for conformance<with the require-ments, to examine the licensce's provisions for invoking the requirements during maintenance and modification work and to determine the status of the licensce's efforts with respect to the actions listed in IE Bulletins 75-04 and 75-04A.
1452 124 _
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Current Findings: Acceptahic Areas The inspect r stated that his review of the following areas re-vealed acceptable findings: l.
Correlation Between the Facility's Recuirements and As-Built ' Status for Fire Stops on Electrical Safety-Related Cabics and Penetration Seals . A visual examination was perforced of the installation of fire barriers and compartment boundary seals, and the application of ."" . _ fire retardant coating, for safety related cables.
There is correlation between this construction and the facility's docu-mented requirements.
(Details, Paragr,ih 3) 2.
Invokement of Facility Requirements for Fire Stops on Electrical = Safety-Related Cables and Penetration Seals in Maintenance and y Modification Procedures . The procedure that controls maintenance, modification, and re-pairs and a recently approved work instruction written specifi-cally for installation and repair of fire barriers were. reviewed.
~ ~'3 They appear to adequately control activities in the subject i ! areas.
(Details, Paragraph 4) - C.
Status of Licensee's Efforts re IE Bulletins 75-04 and 75-04 A The licensee provided the inspector with a status report on his efforts in complying with the requirements of IE Bulletins Nos.
75-04' and 75-04A.
(Details, Paragraph 5)-
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Persons Contrcted Metropolitan Edison Company . ' C. Hartman, Lead Electrical Engineer G. Iby, Senior Staff Engineer J. Zenyuch, Student Engineering Trainee Gilbert Associates
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W. A. Brannen, Supervisory Fire and Safety Engineer P. Shipper, Project Electrical Engineer , 2.
General a.
Plant Status The plant was operating during the inspection.
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Purpose of Inspection - ...s "" The purpose of this inspection was to examine the documented facility requirements for fire stops on safety-related cables and penetration seals, to visually inspect these items for conformance with the requirements, to examine the licensee's provisions for invoking the requirements during mai~ntenance and modification work and to determine the status of the licensee's efforts with respect to the actions listed in IE Bulletins 75-04 and 75-04A.
3.
Correlation Bet aen the Facility's Requirements and As-Built Status for Fire Stons on Electrical Safetv-Related Cables and _ Penetration Seals a.
Requirements The inspector reviewed the licensce's FSAR. Paragraph 8.2.2.ll.b states: " Fire barriers are used at cable trays and cable runs where they enter or leave a Class I area.
There will be fire ~ - " ' barriers where the cable trays enter the control and auxiliary buildings and where vertical trays pass through floor openings".
1452 126 , , - .
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_ The inspector requested all construction specifications and other applicable documentation related to facility require-ments for fire bicriers on safety-related cables and penetra-tion seals.
The inspector was provided with and reviewed Specification SP-5616, Revision 2 and Prints 4192-E-214-011, E-215-Oll, C-201-128, C-201-129, and S-201-121.
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These documents describe the following types of fire barriers and where they are installed: , (1) Trays penetrating metal walls: Kaowool packed, encased in a rectangular sheet metal sleeve, with a marinite board on one side of the wall.
(2) Trays penetrating Class I building (e.g., Control Build-ing and Intermediate Building): exterior concrete walls Kacwool packed, with metal covers bolted onto the angle iron which frames the exterior side of the penetration.
Voids under the cover to be filled with Flamemastic, without intending to provide an air seal.
' - (3) Trays penetrating interior walls: Kaowool packed,.with , ~'N the packing extending six inches from both sides of the ) wall, supported by the tray constructi6n.
(4) Cable penetrations in the Control Room floor, for elec-trical equipment cubicles: Kaowool packed, with a Marinite board on both sides of the penetration.
(5) Vertical penetrations: Kaowool patted, and the tray pro-vided with a cover for approximately six feet above floor level.
The licensee had identified all penetrations and electrical equipment locations on Prints 4912-E-214-014, -022, -023, -024, -025, -026, -034, -03.6, -037, -038, -041, -042, -226-105 and D-214-035.
The inspector reviewed and utilized these for his observation.
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Observation - , , .. (1) Auxiliary Building - The inspector found that the fire barriers conformed to specification requirements.
1452 127 .
. . . ' -6- - / Where cables exited the building througli sleeves, "Dux- . _. seal" was used to seal the opening.
_ (The required Marinite board fire barriers between re-dundant channels, on elevations 281 and 295 were noted by the inspector).
- (2) Control Building
The inspector discovered that the top marinite board had been omitted from the Control-Room-Cubiele floor pene- - trations.
The licensee produced Engineering Change Memo . - S/N 432 which permitted the penetration to have a marinit'e bosrd on only the bottom side.
The installation of fire ! barriers appeared to be acceptable.
(The inspector no'ted that armored cables serv.ed the CRD trip breakers).
=' (3) Intermediate Building The fire barrier installations appeared to conform.to the requirements.
, --) .. (The inspector observed the required Marinite board' fire - barriers between redundant channels, on elevation 295 and noced metal fire doors on the Emergency Diesel Pump Rooms).
(4) Screenhouse
The inspector found that the fire barriers conformed to requirements.
(5) General The inspector noted the occassional application of Flame-mastic on interior wall penetrati'ons.
The licensee stated this was done in certain cases to hold the Knowool together and not for sealing purpocas.
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. . . -7- . ,, i \\ . The inspector also noted the widespread use of Flame-mastic, troweled onto penetration covers.
=< The inspector noted the general practice packing the j penetrations, through which conduits passed, with Kao- . vool.
Kaowool was also packed into conduits at their entry point into cubicles.
A water-deluge system is provided and protects areas including the Cooling Tower, Diesel-Generator, Oil
Reservoir, Service Building, Intake Screen House, ~ Charcoal Filter, and Health Physics areas.
The licensee stated that an automatic CO2 fire suppres- ~ sion system has been designed for the cable spreading and relay areas and preparatory work is underway.
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. The. licensee -also stated that no PVC jacketad cable was used inside the facility, and produced "TMI-EK Bill of - Materials" that appeared to confirm that only fire-retar-dant insulated cable was purchased and used.
~ The inspector reviewed Purchase Orders 9459-01-63618, _ -63830, -63850, -64900, -64S32, -65251, and -65279.
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) confirmed that the required fire-barrier material had been ' ' purchased during construction.
The inspector noted that the non-safety related cabling appeared to be protected by similar fire stops and pene- ~ tration seals.
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Invokement of Facility Requirements for Fire Stops on Electrical Safety-Related Cables and Penetration Seals in Fhintenance and Modification Procedures The inspector review,d " Station Administration Procedure 1016" which specifics that all required maintenance, modification, and repair work must first be entered on a " Work Request Form".
This is reviewed by Supervision.
Safety related items are identified and reviewed by whomover is necessary, including the Quality Assurance group.
All work must be perferned to a written work . '" instructinn and inspected by the foreman (and, when applicable, Quality Control). Work Requests Numbers.2745, 2746, 3353, 35?S, 1452 129 \\ .
. . . -8- , s 4278, 4661, 4796, 4873, and 6335 were inspected and followed the procedure.
The inspector reviewed " Work Request Procedurc-installation / Repair of cable tray and conduit Fire Barriers, 1420-FB-1" dated Iby, . 1975.
It appears to adequately control activity in the subj ect area.
5.. Status of Licensce's Efforts re IE Bulletins 75-04 and 75-04 A The inspector requested a Status Report from the licensee regarding IE Bulletins 75-04 and 75-04A.
The licensee provided the inspector with a letter dated April 28, 1975 from W. M. Creitz (Metropolitan Edison Company) to J. P. O'Reilly (U.S.N.R.C.) containing two enclosures which ansucred all but Item 4 of Bulletin 75-04A.
A review of this item is underway by the licensee; the results will be reported to N.R.C. by May 23, 1975.
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